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■ MODBUS SETTING
The device must be reset or the power supply to it must be turned off and on in order to enable the Modbus setting.
ADDR.
WORD PARAMETER
5738
1
RUN LED time out
RUN LED turns off if the unit receives no Modbus command for the specified time period.
0 to 32 000 : Specified value × 0.1 second
Factory setting : 10
5739
2
Modbus/TCP IP address
IP address is stored in the form of 'A.B.C.D' in the following address:
Address
5739
5740
Factory setting : 192.168.0.1
5741
2
Modbus/TCP subnet mask
Subnet mask is stored in the form of 'A.B.C.D' in the following address:
Address
5741
5742
Factory setting : 255.255.255.0
5743
2
Modbus/TCP default gateway
Default gateway is stored in the form of 'A.B.C.D' in the following address:
Address
5743
5744
Factory setting : 0.0.0.0
5745
1
Modbus/TCP port No.
0 to 65535
Factory setting : 502
5746
1
Modbus/TCP connection time out
Connection is severed if no communication is established for the specified time period.
0 to 32 000 : Specified value × 0.1 second
Factory setting : 600
■ DEMAND SETTING
ADDR.
WORD PARAMETER
5857
1
Average (demand) current update interval
0 : External trigger signal
1 to 60 : Minutes
Factory setting : 30
5858
1
Average (demand) power update interval
0 : External trigger signal
1 to 60 : Minutes
Factory setting : 30
■ STYLE SETTING
ADDR.
WORD
PARAMETER
5987
1
Power factor (PF1 through PF3, PF) sign
0 : Standard (IEC) (*)
1 : Special type 1 (IEEE)
5988
1
Reactive power (Q1 through Q3, Q) sign
0 : Standard (IEC) (*)
1 : Special type 1
5989
1
Reactive power (Q1 through Q3) calculation (Q = Q1 + Q2 + Q3)
0 : Standard (*)
1 : Reactive power meter method
5990
1
Apparent power (S) calculation
0 : Standard (*)
1 : Sum
(*) Factory setting
Note: '1,' '2,' '3' in expressions like Q1, Q2, Q3 indicate 'R,' 'S,' 'T' respectively.
Upper Byte
Lower Byte
A
B
C
D
Upper Byte
Lower Byte
A
B
C
D
Upper Byte
Lower Byte
A
B
C
D
Identical to the active energy
Positive in LAG, Negative in LEAD
Positive from [PF = 1.0] to 180° in LAG direction; Negative for the other direction
Positive in LAG, Negative in LEAD
Qn = √Sn
Qn =
S = √ P
+ Q
2
2
S = S1 + S2 + S3
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp
– Pn
2
2
Nsmp
∑
1
(Un
– Nu
) I
i
i
i + (Nsmp / 4)
Nsmp
i = 1
R7EWTU
UNIT
Sec./10
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Sec./10
UNIT
Minutes
Minutes
EM-7818 Rev.2 P. 10 / 18
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